Large scale, highly conductive and patterned transparent films of silver nanowires on arbitrary substrates and their application in touch screens
Large scale, highly conductive and patterned transparent films of silver nanowires on arbitrary substrates and their application in touch screens
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DOI：
10.1088/0957-4484/22/24/245201
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发表时间：
2011-05-17
期刊：
影响因子：
3.5
通讯作者：
Zhou, Chongwu
中科院分区：
文献类型：
--
作者：
Madaria, Anuj R.;Kumar, Akshay;Zhou, Chongwu
银纳米线薄膜作为透明导电电极的应用近年来取得了可喜的成果。在本文中，我们展示了一个简单的喷涂技术的应用，以获得大规模的，高度均匀的导电银纳米线薄膜上的任意基板。我们还集成了聚二甲基硅氧烷（PDMS）辅助的接触转移技术与喷涂，这使我们能够获得大规模的高品质图案化的银纳米线的薄膜。薄膜的透明度和电导率由喷涂中使用的分散体的体积和基底面积控制。我们注意到，所制造的各种膜的光电性质σ（DC）/σ（Op）在75-350的范围内，与掺杂金属氧化物膜的其他候选替代物相比，这对于透明薄膜是极高的。使用这种方法，我们获得银纳米线薄膜上的柔性聚对苯二甲酸乙二醇酯（PET）基板的透明度为85%，薄层电阻为33 Ω/平方米，这是可比的锡掺杂的氧化铟（ITO）在柔性基板上。使用另一种常用的品质因数Phi（TE）对薄膜进行深入分析显示出高性能。此外，Ag纳米线膜/PET显示出良好的机械柔性，并且已经证明了这种导电银纳米线膜作为触摸面板中的电极的应用。
The application of silver nanowire films as transparent conductive electrodes has shown promising results recently. In this paper, we demonstrate the application of a simple spray coating technique to obtain large scale, highly uniform and conductive silver nanowire films on arbitrary substrates. We also integrated a polydimethylsiloxane (PDMS)-assisted contact transfer technique with spray coating, which allowed us to obtain large scale high quality patterned films of silver nanowires. The transparency and conductivity of the films was controlled by the volume of the dispersion used in spraying and the substrate area. We note that the optoelectrical property, sigma(DC)/sigma(Op), for various films fabricated was in the range 75-350, which is extremely high for transparent thin film compared to other candidate alternatives to doped metal oxide film. Using this method, we obtain silver nanowire films on a flexible polyethylene terephthalate (PET) substrate with a transparency of 85% and sheet resistance of 33 Omega/sq, which is comparable to that of tin-doped indium oxide (ITO) on flexible substrates. In-depth analysis of the film shows a high performance using another commonly used figure-of-merit, Phi(TE). Also, Ag nanowire film/PET shows good mechanical flexibility and the application of such a conductive silver nanowire film as an electrode in a touch panel has been demonstrated.